The Kernel Sulfonamide ELISA Test Kit is a competitive enzyme immunoassay for the quantitative analysis of Sulfonamide in fish, shrimp, honey, kidney, liver, meat (beef, chicken and pork), milk, milk powder, serum, urine and water. 

Sulfonamides are widely used as feed additives, mainly for fattening of calves and pigs. Sulfonamides are also used in veterinary medicine for the treatment of intestinal infections, mastitis, and other diseases. Sulfonamide residues may therefore occur in food of animal origin such as fish and shrimp. According to the US FDA and EU-Law, a maximum residue limit for all substances of the sulfonamide-group of 100 ppb in muscle, fat, liver and kidney and of 100 ppb in milk is valid.